CN202970956U - EGR (Exhaust Gas Recirculation) system with double waste gas passages - Google Patents
EGR (Exhaust Gas Recirculation) system with double waste gas passages Download PDFInfo
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- CN202970956U CN202970956U CN2012206524191U CN201220652419U CN202970956U CN 202970956 U CN202970956 U CN 202970956U CN 2012206524191 U CN2012206524191 U CN 2012206524191U CN 201220652419 U CN201220652419 U CN 201220652419U CN 202970956 U CN202970956 U CN 202970956U
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- waste gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model discloses an EGR (Exhaust Gas Recirculation) system with double waste gas passages. The EGR system with the double waste gas passages comprises an exhaust manifold, a single corrugation pipe line, a waste gas elbow pipe, double corrugation pipe lines, a waste gas joint and an EGR cooler, wherein the exhaust manifold is divided into a cylinder-I cylinder-II exhaust manifold, a cylinder-III cylinder-IV exhaust manifold and a cylinder-V cylinder-VI exhaust manifold; a waste gas hole is formed in the cylinder-III cylinder-IV exhaust manifold; two passages which are not connected with each other are arranged in each of the waste gas elbow pipe and the waste gas joint; the EGR cooler is provided with two waste gas passages; the waste hole in the cylinder-III cylinder-IV exhaust manifold is communicated with one passage in the waste gas elbow pipe through a first pipe line; an exhaust hole in the cylinder-V cylinder-VI exhaust manifold is communicated with the other passage in the waste gas elbow pipe; the two passages in the waste gas elbow pipe are connected with the two passages in the waste gas joint respectively through second pipe lines; and the two passages in the waste gas joint are connected with the two waste gas passages in the EGR cooler respectively. The EGR system with the double waste gas passages fully utilizes the waste gas in all cylinders, so that the waste gas supply can be increased and the EGR rate of an engine can be improved.
Description
Technical field
The utility model relates to engine EGR system, particularly a kind of pair of exhaust steam passage egr system.
Background technique
Along with to the improving constantly of Vehicle Emission, the EGR technology path is because its low cost, high performance-price ratio attract much attention.For effectively reducing the discharging of nitrogen oxide, the EGR of motor leads and has even reached 25% now, and this just needs a large amount of waste gas to mix the combustion process that fresh air participates in motor.Traditional single channel egr system only depends on several cylinders in motor back that the waste gas of capacity possibly can't be provided, so EGR leads lowlyer, can't reach higher EGR and lead requirement.Two exhaust steam passage egr systems can utilize the waste gas of all cylinders, and the waste gas of capacity is provided for motor, thereby the EGR that improves motor leads.
Summary of the invention
Technical problem to be solved in the utility model can't reach for existing single exhaust steam passage egr system the problem that higher EGR leads, design a kind of pair of exhaust steam passage egr system, this system can take full advantage of the waste gas that all cylinders of motor produce, thereby the EGR that improves motor leads, and makes motor reach higher emission standard.
For achieving the above object, the utility model adopts following technical proposals:
A kind of pair of exhaust steam passage egr system, it comprises gas exhaust manifold, single ripple pipeline, waste gas bend pipe, dual ripple pipeline, waste gas joint, cooler for recycled exhaust gas, described gas exhaust manifold be divided into successively be connected one, two cylinder gas exhaust manifold, three, four cylinder gas exhaust manifolds and five, six cylinder gas exhaust manifolds, three, four cylinder gas exhaust manifolds are provided with exhaust apertures, are equipped with two mutual disjunct passages in waste gas bend pipe and waste gas joint, and cooler for recycled exhaust gas is provided with two exhaust steam passages; Exhaust apertures on described three, four cylinder gas exhaust manifolds is by a passage on the first pipeline connection waste gas bend pipe, the exhaust port of described five, six cylinder gas exhaust manifolds is communicated with another passage on the waste gas bend pipe, the other end of two passages of waste gas bend pipe connects respectively two passages of waste gas joint by the second pipeline, the other end of two passages of waste gas joint connects respectively two exhaust steam passages of cooler for recycled exhaust gas.
Exhaust apertures on described three, four cylinder gas exhaust manifolds is positioned at pressurized machine bridge piece place.
Described the first pipeline is single ripple pipeline.
Described the second pipeline is the dual ripple pipeline.
The 6th cylinder gas exhaust manifold position of described five, six cylinder gas exhaust manifolds is provided with attachment hole, and this attachment hole is connected between a passage of the first pipeline and waste gas bend pipe.
Described gas exhaust manifold is that 6 Cylinder engines are used, one, two cylinder is one section, three, four cylinders are one section, five, six cylinders are one section, wherein the waste gas of four, five, six cylinders directly enters the waste gas bend pipe by the exhaust steam passage of the 6th cylinder gas exhaust manifold position, one, the waste gas of two, three cylinders connects aperture under the pressurized machine bend pipe by three, four cylinder gas exhaust manifolds, enters the waste gas bend pipe by single ripple pipeline.The waste gas bend pipe is divided into two mutual disjunct passages in casting, first three cylinder waste gas and rear three cylinder waste gas are entered respectively the waste gas joint by the dual ripple pipeline, two of waste gas joint inside mutually the passages of isolation respectively waste gas is sent into two exhaust steam passages of cooler for recycled exhaust gas.Compare with single exhaust steam passage egr system, two exhaust steam passage egr systems can provide for motor the waste gas of capacity, and the EGR that improves motor leads, thereby makes motor reach higher emission standard.
Description of drawings
Fig. 1 is the structural representation of this model utility;
Fig. 2 is the waste gas bend pipe structure schematic diagram of this model utility;
Fig. 3 is the waste gas joint structure schematic diagram of this model utility.
Wherein: 1, one, the two cylinder gas exhaust manifold; 2, three, four cylinder gas exhaust manifolds; 3, five, six cylinder gas exhaust manifolds; 4, single ripple pipeline; 5, waste gas bend pipe; 6, dual ripple pipeline; 7, waste gas joint; 8, cooler for recycled exhaust gas.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As Figure 1-3, a kind of pair of exhaust steam passage egr system, it is made of component such as gas exhaust manifold, single ripple pipeline 4, waste gas bend pipe 5, dual ripple pipeline 6, waste gas joint 7, coolers for recycled exhaust gas 8, can take full advantage of each cylinder waste gas of motor.
Described gas exhaust manifold be divided into be connected successively one, two cylinder gas exhaust manifold 1, three, four cylinder gas exhaust manifolds 2 and five, six cylinder gas exhaust manifolds 3, three, connect the pressurized machine pipe bent position on four cylinder gas exhaust manifolds 2 and be provided with exhaust apertures A, can allow the waste gas of one two three cylinders enter egr system.Be equipped with two mutual disjunct passages in waste gas bend pipe 5 and waste gas joint 7, can guarantee the waste gas mutual noninterference of waste gas and 456 cylinders of motor one two three cylinders.Cooler for recycled exhaust gas 8 is provided with two exhaust steam passages, can be respectively the waste gas of the waste gas of one two three cylinders and 456 cylinders is carried out cooling, improves cooling effectiveness.The passage that exhaust apertures A on described three, four cylinder gas exhaust manifolds 2 is communicated with on waste gas bend pipe 5 by single ripple pipeline 4, the exhaust port B of described five, six cylinder gas exhaust manifolds 3 is communicated with another passage on waste gas bend pipe 5, the other end of two passages of waste gas bend pipe 5 connects respectively two passages of waste gas joint 7 by dual ripple pipeline 6, the other end of two passages of waste gas joint 7 connects respectively two exhaust steam passages of cooler for recycled exhaust gas 8.
The 6th cylinder gas exhaust manifold position of described five, six cylinder gas exhaust manifolds 3 is provided with attachment hole C, and this attachment hole C is connected between a passage of single ripple pipeline 4 and waste gas bend pipe 5.
Working principle: the waste gas of one two three cylinders enters single ripple pipeline 4 by the exhaust apertures A on three or four cylinder exhaust cylinders 2, and single ripple pipeline 4 is connected on five or six cylinder gas exhaust manifolds 3, by the hole C on gas exhaust manifold 3, connects the hole K on waste gas bend pipe 5; The waste gas of 456 cylinders meets the hole J on waste gas bend pipe 5 by the exhaust port B on five or six cylinder gas exhaust manifolds 3; Waste gas bend pipe 5 inside are designed to mutual disjunct passage, and hole K is connected with hole L by passage, and hole J is connected with hole M by passage; Hole M on waste gas bend pipe 5 is connected with hole D on dual ripple pipeline 6, and hole L is connected with hole E; On dual ripple pipeline 6, the passage at hole D place connects the hole F on waste gas joint 7, the pipeline attachment hole G at E place, hole; Waste gas joint 7 inside are designed to two passages of isolation mutually, and hole G is by passage attachment hole O, and hole F is by passage attachment hole P; Hole O on waste gas joint 7 connects the exhaust steam passage H on cooler for recycled exhaust gas 8, and hole P connects waste gas I.Like this, the waste gas of motor one two three cylinders enters an exhaust steam passage of cooler for recycled exhaust gas 8 along pipeline A-4-C-K-L-E-6-G-O, and the waste gas of 456 cylinders enters another exhaust steam passage of cooler for recycled exhaust gas 8 along pipeline B-J-M-D-6-F-P-I.A, B, C, D, E, F, G, H, I, J, K, L, M, O, P are respectively the exhaust steam passage interface of each pipeline.Compare with single exhaust steam passage egr system, two exhaust steam passage egr systems can provide for motor the waste gas of capacity, and the EGR that improves motor leads, thereby makes motor reach higher emission standard.
Although above-mentionedly by reference to the accompanying drawings embodiment of the present utility model is described; but be not the restriction to the utility model protection domain; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (5)
1. two exhaust steam passage egr system, it comprises gas exhaust manifold, single ripple pipeline, waste gas bend pipe, dual ripple pipeline, waste gas joint, cooler for recycled exhaust gas, it is characterized in that, described gas exhaust manifold be divided into successively be connected one, two cylinder gas exhaust manifold, three, four cylinder gas exhaust manifolds and five, six cylinder gas exhaust manifolds, three, four cylinder gas exhaust manifolds are provided with exhaust apertures, be equipped with two mutual disjunct passages in waste gas bend pipe and waste gas joint, cooler for recycled exhaust gas is provided with two exhaust steam passages; Exhaust apertures on described three, four cylinder gas exhaust manifolds is by a passage on the first pipeline connection waste gas bend pipe, the exhaust port of described five, six cylinder gas exhaust manifolds is communicated with another passage on the waste gas bend pipe, the other end of two passages of waste gas bend pipe connects respectively two passages of waste gas joint by the second pipeline, the other end of two passages of waste gas joint connects respectively two exhaust steam passages of cooler for recycled exhaust gas.
2. as claimed in claim 1 pair of exhaust steam passage egr system, is characterized in that, the exhaust apertures on described three, four cylinder gas exhaust manifolds is positioned at the pressurized machine bridge piece place on gas exhaust manifold.
3. as claimed in claim 1 pair of exhaust steam passage egr system, is characterized in that, described the first pipeline is single ripple pipeline.
4. as claimed in claim 1 pair of exhaust steam passage egr system, is characterized in that, described the second pipeline is the dual ripple pipeline.
5. as claimed in claim 1 pair of exhaust steam passage egr system, is characterized in that, the 6th cylinder gas exhaust manifold position of described five, six cylinder gas exhaust manifolds is provided with attachment hole, and this attachment hole is connected between a passage of the first pipeline and waste gas bend pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206524191U CN202970956U (en) | 2012-11-30 | 2012-11-30 | EGR (Exhaust Gas Recirculation) system with double waste gas passages |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206524191U CN202970956U (en) | 2012-11-30 | 2012-11-30 | EGR (Exhaust Gas Recirculation) system with double waste gas passages |
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| Publication Number | Publication Date |
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| CN202970956U true CN202970956U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012206524191U Expired - Lifetime CN202970956U (en) | 2012-11-30 | 2012-11-30 | EGR (Exhaust Gas Recirculation) system with double waste gas passages |
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| CN (1) | CN202970956U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110344967A (en) * | 2019-08-20 | 2019-10-18 | 中国重汽集团济南动力有限公司 | A kind of single channel of in-line five cylinders diesel engine takes EGR exhaust system |
| CN110439681A (en) * | 2019-08-20 | 2019-11-12 | 中国重汽集团济南动力有限公司 | A kind of in-line five cylinders diesel engine |
| CN112031961A (en) * | 2020-08-31 | 2020-12-04 | 东风商用车有限公司 | Rear end integrated form binary channels pulse EGR system |
-
2012
- 2012-11-30 CN CN2012206524191U patent/CN202970956U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110344967A (en) * | 2019-08-20 | 2019-10-18 | 中国重汽集团济南动力有限公司 | A kind of single channel of in-line five cylinders diesel engine takes EGR exhaust system |
| CN110439681A (en) * | 2019-08-20 | 2019-11-12 | 中国重汽集团济南动力有限公司 | A kind of in-line five cylinders diesel engine |
| CN112031961A (en) * | 2020-08-31 | 2020-12-04 | 东风商用车有限公司 | Rear end integrated form binary channels pulse EGR system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |